Imaging region-specific radio frequency coils for MRI

Details Imaging region-specific radio frequency coils for MRI Imaging region-specific radio frequency coils for MRI

2006-10-03

2010-06-01

Shrivastav, Brij B (Department: 2831)

Electricity: measuring and testing

Particle precession resonance

Spectrometer components

Reexamination Certificate

active

07728591

ABSTRACT:
A radio frequency coil includes a non-cylindrical conformal surface (62, 76) that substantially conforms with a magnetic resonance subject. A plurality of conductor loops (60, 71, 72, 73, 74) are disposed in or on the non-cylindrical conformal surface. The plurality of conductor loops are configured to produce a substantially uniform Bi field in the magnetic resonance subject responsive to energizing at a Bi frequency. Optionally, a plurality of load-compensating conductor loops (90) are disposed in or on a compensatory non-cylindrical conformal surface (62) that substantially conforms with a magnetic resonance subject. The plurality of load-compensating conductor loops are configured to produce a non-uniform Bi field that compensates for a loading Bi non-uniformity caused by the magnetic resonance subject. Moreover, the coil may comprise switching means for switching the coil between a first mode of operation (e.g. a volume transmit mode) and a second mode of operation (e.g. a phased array reception mode).

REFERENCES:
patent: 4793356 (1988-12-01), Misic et al.
patent: 4920318 (1990-04-01), Misic et al.
patent: 5045792 (1991-09-01), Mehdizadeh
patent: 5111146 (1992-05-01), Kuhn
patent: 5196796 (1993-03-01), Misic et al.
patent: 5543710 (1996-08-01), Jones
patent: 5575287 (1996-11-01), Eydelman
patent: 5600244 (1997-02-01), Jensen et al.
patent: 5682098 (1997-10-01), Vij
patent: 5998999 (1999-12-01), Richard et al.
patent: 6023166 (2000-02-01), Eydelman
patent: 6023167 (2000-02-01), DeMeester
patent: 6043658 (2000-03-01), Leussler
patent: 6323648 (2001-11-01), Belt et al.
patent: 6424154 (2002-07-01), Young
patent: 6608480 (2003-08-01), Weyers
patent: 6624633 (2003-09-01), Zou et al.
patent: 6771071 (2004-08-01), Wright et al.
patent: 6812700 (2004-11-01), Fahrig et al.
patent: 6900636 (2005-05-01), Leussler
patent: 6906518 (2005-06-01), Leussler
patent: 7026818 (2006-04-01), Machida et al.
patent: 7176689 (2007-02-01), Machida et al.
patent: 7245127 (2007-07-01), Feng et al.
patent: 7253621 (2007-08-01), Steen et al.
patent: 0844489 (1998-05-01), None
patent: 2004027442 (2004-04-01), None
patent: 2004048987 (2004-06-01), None
patent: 2004092760 (2004-10-01), None
Lawrence, et al., “An Inverse Design of an Open, Head/Neck RF Coil for MRI,” IEEE Trans. on Biomedical Engineering, 49(9), Sep. 2002, pp. 1024-1030.
Lawrence, et al., “A Time-Harmonic Inverse Methodology for the Design of RF Coils in MRI,” IEEE Trans. on Biomedical Engineering, 49(1), Jan. 2002, pp. 64-71.
Fujita, et al., “A Hybrid Inverse Approach Applied to the Design of Lumped-Element RF Coils,” IEEE Trans. on Biomedical Engineering, 46(3), Mar. 1999, pp. 353-361.

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